At the last trailer we have seen Zeratul who was fighting fantastic against Kerrigan’s Hydralisks.Especially last one was defeated very skillfully.So we do not forget his Assasin abilities.But the more important event at that teaser is the meeting of two races heros.Kerrigan was as always smart alecky and self confident while Zeratul was angry and impressive.After that trailer we are waiting the next teaser far more higher than at any time.